Engine
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V-Twin - 12-0595 - Engine Case 9/16 inch Welch Plug
Motorshop
MSRP: $19.86$19.66V-Twin - 12-0595 - Engine Case 9/16 inch Welch PlugDescriptionSteel 9/16" welch plug for early engine cases are used to form the internal cavities in the engine case, forming a coolant passage.Welch...MSRP: $19.86$19.66 -
V-Twin - 12-0593 - Oil Pump Screw Kit - Fits 1965-1969 Harley-Davidson FL
V-Twin Mfg
$21.63Oil pump screw kit includes a screw, nut and brass washer. Fits:FL 1965-1969Additional Information UOM1 - KIT$21.63 -
V-Twin - 12-0584 - Oil Pump Oiler Screw
Motorshop
MSRP: $19.64$19.44V-Twin - 12-0584 - Oil Pump Oiler ScrewDescriptionOil pump oiler screw for 1954-1965 Big Twin models includes the hex nut. Long type adjustment screw with slotted head.Includes "heavy" hex nut (7630)...MSRP: $19.64$19.44 -
V-Twin - 12-0577 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
MSRP: $32.64$30.51V-Twin - 12-0577 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1991-up XL and 1993-up Big Twin models. Fits:FLT 1993-1998FXST 1993-1998XL 1991-UPFLST 1993-1998FXD...MSRP: $32.64$30.51 -
V-Twin - 12-0573 - Crank Pin Nut Set
Eastern Motorcycle Parts
MSRP: $40.65$36.22V-Twin - 12-0573 - Crank Pin Nut SetDescriptionCrank pin nut set.Set of two. Fits:FL 1941-1953Additional Information OEM NoMSRP: $40.65$36.22 -
V-Twin - 12-0571 - Flexloc Nut for Rocker Arm Stud Cadmium
Motorshop
$32.07V-Twin - 12-0571 - Flexloc Nut for Rocker Arm Stud CadmiumDescriptionReplica rocker arm stud flex jam nuts are all metal, are cadmium plated, and are 5/16-24. Fits:FL 1948-1965Additional Information$32.07 -
V-Twin - 12-0565 - Crank Pin Nut Set
Eastern Motorcycle Parts
MSRP: $25.33$23.68V-Twin - 12-0565 - Crank Pin Nut SetDescriptionCrank pin nut set.Sold as a pair Fits:XL 1981-UPAdditional Information OEM NMSRP: $25.33$23.68 -
V-Twin - 12-0560 - Pinion/Sprocket 45 inch Shaft Nut
Eastern Motorcycle Parts
MSRP: $35.53$33.21V-Twin - 12-0560 - Pinion/Sprocket 45 inch Shaft NutDescriptionPinion/sprocket 45" Shaft NutNut is for use on pinion and sprocket shaft on 45 W & G models. Fits:WL 1937-1952DL 1929-1931WL 1932-1936G...MSRP: $35.53$33.21 -
V-Twin - 12-0558 - Crank Pin Nut Set
Eastern Motorcycle Parts
$32.18V-Twin - 12-0558 - Crank Pin Nut SetDescriptionCrank pin nut set.Set of two. Fits:FL 1981-1983FLT 1981-1983FX 1981-1983Additional Information$32.18 -
V-Twin - 12-0536 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
MSRP: $30.73$28.73V-Twin - 12-0536 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1977-1990 XL models. Fits:XL 1977-1990Additional InformationMSRP: $30.73$28.73 -
V-Twin - 12-0535 - Crank Pin Nut Set
Eastern Motorcycle Parts
MSRP: $41.73$38.79V-Twin - 12-0535 - Crank Pin Nut SetDescriptionCrank pin nut set for overhead and side valve models.Set of two. Fits:UL 1936-1948EL 1936-1952Additional InformationMSRP: $41.73$38.79 -
V-Twin - 12-0532 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
MSRP: $46.58$45.27V-Twin - 12-0532 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut with 3/4" X 18 TPI for tapered end shafts. Fits:EL 1936-1940FX 1971-1981FL 1941-1981Additional InformationMSRP: $46.58$45.27 -
V-Twin - 12-0525 - Red Rocker Arm Shaft End Caps
Motorshop
$22.96V-Twin - 12-0525 - Red Rocker Arm Shaft End CapsDescriptionReplica Red Rocker Shaft End Caps are 1/2" X 20 thread pitch and come with a high chrome finish. Fits:FX 1971-1984FXR 1982-1983FL...$22.96 -
V-Twin - 12-0524 - Tappet Nut without Split
Eastern Motorcycle Parts
MSRP: $30.80$28.79V-Twin - 12-0524 - Tappet Nut without SplitDescriptionEastern tappet nut without split has a thread size of 9/32-32. Fits:Replacement application for Eastern TappetsAdditional InformationMSRP: $30.80$28.79 -
V-Twin - 12-0523 - Split Tappet Nut
Eastern Motorcycle Parts
MSRP: $34.49$33.89V-Twin - 12-0523 - Split Tappet NutDescriptionSplit tappet nut Fits:WL 1938-1952EL 1936-1940XL 1957-1985FL 1941-1952UL 1938-1948Additional InformationMSRP: $34.49$33.89 -
V-Twin - 12-0522 - Crank Pin Nut Set
Eastern Motorcycle Parts
MSRP: $25.33$23.68V-Twin - 12-0522 - Crank Pin Nut SetDescriptionCrank pin nut set.Sold as a pair Fits:XL 1957-1981K 1954-1956Additional InformationMSRP: $25.33$23.68 -
V-Twin - 12-0521 - Crank Pin Nut Set - Fits 1937-1948 Harley-Davidson UL, 1936-1952 EL
V-Twin Mfg
$26.91Crank pin nut set.Sold as a pair. Fits:UL 1937-1948EL 1936-1952Additional Information OEM No.23966-54A$26.91 -
V-Twin - 12-0520 - Crank Pin Nut Set
Eastern Motorcycle Parts
MSRP: $29.85$27.91V-Twin - 12-0520 - Crank Pin Nut SetDescriptionCrank pin nut set only.Set of two. ...MSRP: $29.85$27.91 -
V-Twin - 12-0517 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
MSRP: $44.47$43.22V-Twin - 12-0517 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut Fits:FXST 1984-1998FLT 1979-1998FXD 1991-1998FL 1981-1984FXR 1984-1994FLST 1986-1998FX 1981-1984Additional InformationMSRP: $44.47$43.22 -
V-Twin - 12-0516 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
MSRP: $36.25$33.89V-Twin - 12-0516 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut Fits:XL 1981-UPAdditional Information OEM No.MSRP: $36.25$33.89 -
V-Twin - 12-0512 - Pinion Shaft Gear End Nut
Alto Products
$18.59V-Twin - 12-0512 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1990-1992 Big Twin models. Fits:FLT 1990-1992FXR 1990-1992FXD 1991-1992FXST 1990-1992FLST 1990-1992Additional...$18.59 -
V-Twin - 12-0507 - Pinion Shaft Gear End Nut
Motorshop
MSRP: $16.30$16.14V-Twin - 12-0507 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1954-1989 Big Twin models. Fits:FXST 1984-1989FX 1954-1984FXR 1982-1989FLST 1986-1989FL 1954-1984FLT...MSRP: $16.30$16.14 -
V-Twin - 12-0499 - Engine Case 1/4 inch Welch Plug - Fits 1948-1969 Harley-Davidson FL
V-Twin Mfg
$5.82Engine case 1/4" welch plug for early cases.Welch plug is used to seal passages created for internal oiling, on oil pump body and engine case. The welch plug expands for a permanent seal when hit...$5.82 -
V-Twin - 12-0479 - 1936 Oil Pump Assembly
Motorshop
$723.95V-Twin - 12-0479 - 1936 Oil Pump Assembly Description Oil pump assembly for 1936 only. Body accepts steel line for gauge mounted in dash. Fits: EL 1936-1936 Additional Information$723.95 -
V-Twin - 12-0477 - Knucklehead Oil Pump Assembly - Fits 1937-1940 Harley-Davidson EL
Motorshop
MSRP: $696.03$591.16V-Twin - 12-0477 - Knucklehead Oil Pump Assembly Description Knucklehead oil pump assembly is for 1936-1940 EL but accurate for late 1938-1940 EL. Assembly accepts replica oil pressure sending unit...MSRP: $696.03$591.16 -
V-Twin - 12-0464 - Replica Oil Pump Rebuild Kit
Motorshop
$380.73V-Twin - 12-0464 - Replica Oil Pump Rebuild KitDescriptionReplica oil pump rebuild kit includes all components to assemble a bare body. Fits:FL 1952-1964Additional Information$380.73 -
V-Twin - 12-0456 - Knucklehead Oil Pump Body Silver
Motorshop
$285.12V-Twin - 12-0456 - Knucklehead Oil Pump Body SilverDescriptionKnucklehead oil pump body has oil pressure switch threaded hole on extreme right side and is painted silver.Accepts scavenger gear,...$285.12 -
V-Twin - 12-0452 - Knucklehead Oil Pump Body - Fits 1936-1940 Harley-Davidson EL
Motorshop
$293.76V-Twin - 12-0452 - Knucklehead Oil Pump Body Description Knucklehead oil pump body has oil pressure switch threaded hole on extreme right side.Accepts scavenger gear, scavenger idler gear, feed...$293.76 -
V-Twin - 12-0434 - Left Crankcase Oversize Main Bearing Cup and Cone
Timken
$53.05V-Twin - 12-0434 - Left Crankcase Oversize Main Bearing Cup and ConeDescriptionTimken left crankcase oversize bearing cup and cone is .112 oversize. Use when cast in steel insert in left case is...$53.05 -
V-Twin - 12-0430 - Left Crankcase Main Bearing Set
Motorshop
$87.15V-Twin - 12-0430 - Left Crankcase Main Bearing SetDescriptionV-Twin left crankcase main bearing set is factory assembled with correct spacer for proper end play.Sold as a pair. Fits:XL...$87.15 -
V-Twin - 12-0428 - Left Crankcase Main Bearing Set
Motorshop
$70.51V-Twin - 12-0428 - Left Crankcase Main Bearing SetDescriptionReplica left crankcase main bearing set is factory assembled with correct spacers for proper end play, for the left side bearing assembly...$70.51 -
V-Twin - 12-0425 - Cam Gear Bearing
Motorshop
MSRP: $19.64$19.44V-Twin - 12-0425 - Cam Gear BearingDescriptionCam gear bearing.For use with bearing, as listed. Fits:XL 1957-1990Additional InformationMSRP: $19.64$19.44 -
V-Twin - 12-0424 - Crankcase Sprocket Shaft Roller Bearing Retainer
Motorshop
MSRP: $45.13$44.22V-Twin - 12-0424 - Crankcase Sprocket Shaft Roller Bearing RetainerDescriptionCrankcase Sprocket Shaft Roller Bearing RetainerSold as a pair. *NOTE: Some applications use a 1.35" O.D. cage. Fits:DL...MSRP: $45.13$44.22 -
V-Twin - 12-0421 - Scavenger Pump and Breather Valve Drive Gear
Motorshop
$54.47V-Twin - 12-0421 - Scavenger Pump and Breather Valve Drive GearDescriptionScavenger pump and breather valve drive gear for pinion shaft. 4 spline drive gear is used to drive the scavenger pump and...$54.47 -
V-Twin - 12-0419 - Cam Chest Circuit Breaker Drive Gear - Fits 1937-1948 Harley-Davidson UL, 1937-1952 WL, 1937-1973 G
V-Twin Mfg
$37.27Cam chest circuit breaker drive gear. Fits:UL 1937-1948WL 1937-1952G 1937-1973Additional Information OEM No.25851-37$37.27 -
V-Twin - 12-0414 - Sprocket Shaft Left Side Retainer Cage
Motorshop
MSRP: $39.87$39.07V-Twin - 12-0414 - Sprocket Shaft Left Side Retainer CageDescriptionLeft side roller retainer cage is made of steel.Sold as a pair Fits:UL 1937-1948EL 1930-1940VL 1930-1934FL 1941-1954Additional...MSRP: $39.87$39.07 -
V-Twin - 12-0412 - Connecting Rod Roller Retainer Cage
Jims
MSRP: $265.50$262.30V-Twin - 12-0412 - Connecting Rod Roller Retainer CageDescriptionJims connecting rod roller retainer cage is a 4 piece set, billet steel type. Fits:FXST 1984-1998FXR 1982-1994FLT 1979-1998FX...MSRP: $265.50$262.30 -
V-Twin - 12-0410 - Crankcase Sprocket Shaft Bearing Assembly
Motorshop
$97.05V-Twin - 12-0410 - Crankcase Sprocket Shaft Bearing AssemblyDescriptionCrankcase sprocket shaft bearing assembly includes standard rollers. Fits:WL 1937-1952DL 1929-1931G 1932-1973Additional...$97.05 -
V-Twin - 12-0409 - Crankcase Sprocket Shaft Hardware Kit
Motorshop
$92.64V-Twin - 12-0409 - Crankcase Sprocket Shaft Hardware KitDescriptionSprocket shaft left side cage and roller kit includes standard size rollers, cages, washers, and retaining ring. Fits:FL...$92.64 -
V-Twin - 12-0404 - Connecting Rod Steel Cage Set
Motorshop
$66.95V-Twin - 12-0404 - Connecting Rod Steel Cage SetDescriptionConnecting rod cage 4 piece set for 74" and 80" engine. Fits:FXST 1984-1998UL 1937-1948FXR 1982-1994FLT 1979-1998FX 1971-1984EL 1936-1940FL...$66.95
Harley Engine
At Deadbeat Customs, we offer a wide selection of Harley engine parts built for performance, reliability, and long-lasting power. Whether you're rebuilding a vintage motor or upgrading a modern setup, we’ve got the top-end and bottom-end components you need to get the job done right.
We carry engine parts for a wide range of Harley Davidson models, including Dyna, Sportster, FXR, Touring, Softail, Shovelhead, and Panhead. From the classic Evo 1340 and Shovelhead to Twin Cam 88/96/103/110, and the modern Milwaukee-Eight 107/114/117, our catalog covers nearly every era of Harley engine design.
Choose from trusted brands like S&S Cycle, Fueling, Vance & Hines, and more—known for producing high-quality components that meet or exceed OEM standards.
Explore our full collection of Harley engine parts today and build your motor with confidence—because whether it’s vintage or modern, your Harley deserves the best from the inside out.